I think Win has mentioned in the past that wind was a consideration for going with a fixed grip. With the VH alignment, it is susceptible to cross winds coming out of the NW and over the ridge above CR. Not sure how much of a factor that would be with a slightly lower terminus and start, but intuitively that seems correct.
I suspect cost was also a major factor - detach would be 3-4x in capital costs plus a lot higher operating cost.
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